FRONT	REAR
SPRING RATES	14k	Varies (See Below)
UPPER MOUNT	Pillowball w/ Camber Plates	OEM
STRUT DESIGN	Inverted	Sustech Inverted

 

Application Note:

• Please select desired coilover style when ordering
• Divorced kits equipped with 12k R spring rate
• True Coilover kits equipped with 9k R spring rate
• Fits vehicles equipped with OE 55mm Diameter Struts Only
• Fits Front Wheel Drive Models Only; Includes Sportback Models
  
• Please select desired coilover model, 2-way or 3-way when ordering

YSR USA Advanced Pro Plus Circuit Coilover System

Engineered for peak performance on the track, the YSR USA Advanced Pro Plus Circuit Coilover System is our top-tier, motorsport-grade suspension setup, developed specifically for competitive circuit racing. Designed with input from professional drivers and race engineers, this system is available in both 2-way and 3-way adjustable configurations, delivering superior adjustability, consistency, and precision handling under extreme driving conditions.

Whether you choose the 2-way adjustable version (rebound + compression) or the 3-way adjustable version (independent high-speed compression, low-speed compression, and rebound), this system gives drivers total control over suspension dynamics—allowing precise tuning for various circuit layouts, track surfaces, and driving styles.

Each kit is built to order with vehicle-specific valving and spring rates tailored to high-grip tarmac use. Whether you're dialing in balance at a technical course or chasing lap times on a high-speed track, the Advanced Pro Plus Circuit kit gives you the control and feedback needed to push limits confidently.

 

Key Features:

• 2-Way or 3-Way Adjustable Damping
  Choose from:
  
  
  • 2-WAY EXTERNAL RESERVOIR
    2-way adjustable dampers with independent rebound and compression control, ideal for serious track users seeking simplicity with performance.
    
    
  • 3-WAY EXTERNAL RESERVOIR
    3-way adjustable dampers featuring independent 17 clicks of high-speed compression, 20 clicks of low-speed compression and 33 clicks of rebound damping adjustment for maximum fine-tuning. 
    
    
• Monotube Damper Design
  Delivers consistent performance and superior heat dissipation—critical during extended sessions and endurance racing.
  
  
• High-Precision Remote Reservoirs
  External reservoirs allow increased oil capacity and thermal stability, ensuring damper performance stays consistent lap after lap
  
  
• Custom Spring Rates & Valving
  Every kit is tailored to your vehicle and race needs, offering ideal balance, grip, and compliance on tarmac surfaces
  
  
• Lightweight Construction
  CNC-machined components and aluminum shock bodies reduce unsprung weight without compromising strength.
  
  
• Camber Adjustable Top Mounts (on applicable models)
  Helps dial in aggressive track alignment setups for maximum front-end grip and tire contact.

Important Considerations When Choosing Circuit Spec Suspension

Pros:

• Choice of 2-way or 3-way adjustment to suit driver needs and tuning complexity

• Consistent, fade-resistant performance during long track sessions
  

• Built-to-order specs ensure optimal performance for specific vehicle setup and weight
  
  
• Improved lap times through superior grip and chassis control
  
  
• Enhanced steering feedback and cornering stability at high speeds
  
  
• Ideal for time attack, road racing, and professional-level motorsport applications

Cons:

• Not recommended for street use due to stiffer valving and higher NVH (Noise, Vibration, Harshness)

• Requires experienced setup and tuning for best results

• Higher cost compared to 1-way systems due to advanced features

• May need frequent adjustments to adapt to different tracks or conditions
  
  
• Reduced ride comfort outside of track environments

The Advanced Pro Plus Circuit Coilover System is a purpose-built tool for those who demand uncompromising performance and adjustability on the track. Whether you prefer the efficient control of a 2-way setup or the deep tuning capabilities of a 3-way system, this kit is designed to deliver professional-level handling and feedback for your podium pursuit.

 

High quality components are adopted to ensure product durability and stability. Each application is test fit and completely road tested to guarantee perfect performance and comfort.

Please note that ALL of our coilovers are hand built and made to order. Please allow 3-4 weeks for delivery.

**Photographs shown are stock photos; Actual items may vary in appearance or features. Please contact us for specific features of each kit.